Budget Travel Magazine
Rick Steves: Europe travel guru, Seattle native
Conde Nast Traveller Magazine
Search Engine for the cheapest airfare, hotel, cruises, etc: Kayak.com
Grab their $10 seats on flights, but they go to obscure airports domestically: SkyBus
Student Travel: discounts on airfare, information on locations from others, etc
Booking hostels has never been so easy and efficient- HostelWorld has never failed me. Plus, if you are booking enough, just getting the 'Gold Card' pays off after 4 bookings.